A taro harvester

Abstract

The application discloses a taro harvester, which comprises a tractor frame, wherein the moving direction of the tractor is along the X direction, the positive direction of the X direction is the front end, and the negative direction of the X direction is the rear end; the front end of the frame is provided with a shovel for shoveling taros out of the soil; two groups of soil turning components for loosening the soil are arranged on the frame and located at the front end of the shovel; two groups of stalk supporting devices for preventing the taro stalks from falling are arranged on the frame and located above the shovel; two groups of stalk limiting components for limiting the position of the taro stalks are arranged on the frame and located at the rear end of the stalk supporting devices; two groups of pulling components for pulling the taros high are arranged on the frame and located at the rear end of the stalk limiting components; two groups of cutter components for cutting the taro stalks and root hairs are arranged on the frame and located below the pulling components; and a screening and collecting component for separating the taro stalks and root hairs is arranged on the frame and located below the cutter components. The method can automatically separate the fruits and root hairs, and the treatment is more thorough.

Description

Technical Field

[0001] This invention belongs to the field of taro harvesting equipment, specifically relating to a taro harvester. Background Technology

[0002] Taro is an economic crop. A mature taro plant mainly consists of leaves, fruit, and roots.

[0003] There are various types of taro harvesters currently available, such as the multi-functional taro harvester disclosed in Chinese patent application CN108476702A, which has a digging system, a conveying system, a soil separation system, and a graded collection system.

[0004] The existing technology also has the following shortcomings: First, the harvester lacks a leaf-cutting device to remove leaves from mature taro plants. Before harvesting the taro, the leaves must be manually removed, making the harvester inconvenient to use. Second, the conveying system can only transport taro, and the taro on the conveying system consists of taro with both fruit and roots. The existing technology also has the problem of not being able to accurately cut at the junction of the taro fruit and the petiole (requiring secondary processing). Summary of the Invention

[0005] The present invention provides a taro harvester that can solve the above-mentioned defects.

[0006] To achieve the above objectives, the present invention provides a taro harvester, which includes a tractor and a frame mounted on the chassis of the tractor. The tractor moves along the X direction, with the positive X direction being the front end and the negative X direction being the rear end.

[0007] The front of the frame is equipped with a shovel for scooping taro out of the soil;

[0008] The frame is also equipped with two sets of soil-loosening components located at the front end of the shovel blade;

[0009] The frame is also equipped with two sets of support devices to prevent the taro stems from tipping over, located above the shovel blade;

[0010] The frame is also equipped with two sets of taro stem limiting components, located at the rear end of the taro lifting device, to restrict the position of the taro stems.

[0011] The frame is also equipped with two sets of pulling components for pulling the taro up, located at the rear of the limiting component;

[0012] The frame is also equipped with two cutting blade assemblies for cutting taro stems and roots, both located below the pulling assembly;

[0013] The frame is also equipped with a sieve collection assembly for separating taro stems and roots, located below the cutter assembly.

[0014] Further, the two sets of the supporting device are arranged one above the other, and each set of the supporting device comprises two sets of supporting assemblies, and the two sets of supporting assemblies are symmetrically arranged along the plane P.

[0015] The supporting assembly comprises:

[0016] The horizontal rod is fixed on the frame, and the axis of the horizontal rod is along the X direction;

[0017] The sliding block is movably clamped on the horizontal rod and can move along the axis of the horizontal rod;

[0018] The limiting spring is sleeved on the horizontal rod, one end of the limiting spring abuts against the sliding block, and the other end of the limiting spring abuts against the frame, and the limiting spring is in a compressed state;

[0019] The mounting seat is fixed on the horizontal rod, the sliding block is between the limiting spring and the mounting seat, and the sliding block abuts against the mounting seat under the action of the limiting spring;

[0020] The first connecting rod is rotatably connected to the mounting seat at one end, and the rotation axis of the first connecting rod is vertically arranged;

[0021] The second connecting rod is rotatably connected to the sliding block at one end and rotatably connected to the middle part of the first connecting rod at the other end, and the rotation axes of the two ends of the second connecting rod are both vertically arranged;

[0022] The end head is fixed to the other end of the first connecting rod; under the action of the limiting spring, the end heads of the two supporting assemblies in each set of the supporting device abut against each other.

[0023] After the taro is dug out of the soil, in order to facilitate the taro being grabbed by the lifting assembly, it is necessary to prevent the taro stem from falling. The supporting assembly can make the taro stem abut against the front end surface thereof, and as the tractor continuously advances, the taro stem can be located at the rear end of the supporting assembly and be subjected to the supporting assembly, and even if the taro stem abuts against the right end surface of the supporting assembly, it will not fall. The supporting assembly is located at the front end of the harvester, and after the taro stem reaches the rear end of the supporting assembly, the soil turning assembly starts to turn the soil, and then the shovel digs the taro out of the soil.

[0024] Further, the middle line of the tractor chassis along the X direction is line G, and the plane passing through line G and being vertically arranged is plane P; the two sets of soil turning assemblies are symmetrically arranged along the plane P;

[0025] The soil turning assembly comprises:

[0026] The soil turning motor is fixed on the frame at a non-rotation shaft end, and the rotation shaft of the soil turning motor is vertically arranged;

[0027] The soil turning driving gear is fixedly connected with the rotation shaft of the soil turning motor, and the axis thereof coincides with the axis of the rotation shaft of the soil turning motor;

[0028] The connecting shaft is rotatably connected to the frame, and the axis thereof is vertically arranged;

[0029] The soil-shifting driven gear is fixed on the connecting shaft, and the axis of the soil-shifting driven gear coincides with the axis of the connecting shaft;

[0030] The soil-shifting chain is simultaneously sleeved on the soil-shifting driving gear and the soil-shifting driven gear and simultaneously meshes with the soil-shifting driving gear and the soil-shifting driven gear;

[0031] The brush roller is fixed on the connecting shaft, and the axis of the brush roller coincides with the axis of the connecting shaft; the two soil-shifting assemblies are located on the two sides of the brush roller along the Y direction, and the height of the brush roller is lower than the height of the front end of the shovel blade.

[0032] The soil-shifting assemblies can loosen the soil before the shovel blade digs out the taro fruits from the soil, and the shovel blade can easily dig out the taro fruits.

[0033] Further, the two grass-limiting assemblies are symmetrically arranged along the face P; the grass-limiting assembly comprises:

[0034] The mounting frame is fixed on the vehicle frame;

[0035] The plurality of first limiting wheels are rotationally connected to the fixed frame, and the rotation shaft axis of the first limiting wheels is arranged in the vertical direction;

[0036] The limiting motor is fixed on the vehicle frame at the non-rotation shaft end, the rotation shaft of the limiting motor is arranged in the vertical direction, and the limiting drive gear is fixedly connected to the rotation shaft of the limiting motor; the rotation shaft axis of the limiting drive gear coincides with the rotation shaft axis of the limiting motor;

[0037] The limiting chain is simultaneously sleeved on the plurality of first limiting wheels and the limiting drive gear and simultaneously meshes with the plurality of first limiting wheels and the limiting drive gear; the limiting chains of the two grass-limiting assemblies do not contact each other, and the two limiting chains leave a feeding port for the taro stems to pass through.

[0038] Because the grass-supporting assembly prevents the taro stems from falling down, the two limiting chains of the grass-limiting assembly can clamp the upright taro stems and move the taro stems to the rear end.

[0039] Further, the two pulling assemblies are symmetrically arranged along the face P, and the pulling assembly comprises:

[0040] The pulling frame is fixed on the vehicle frame, and the front end of the pulling frame is lower than the rear end;

[0041] The plurality of second limiting wheels are rotationally connected to the pulling frame, and the rotation shaft axis of the second limiting wheels is perpendicular to the pulling frame;

[0042] The pulling motor is fixed on the vehicle frame at the non-rotation shaft end, and the rotation shaft of the pulling motor is perpendicular to the pulling frame; the pulling drive gear is fixedly connected to the rotation shaft of the pulling motor, and the axis of the pulling drive gear coincides with the rotation shaft axis of the pulling motor;

[0043] The pulling chain is sleeved on the plurality of second limiting wheels and the pulling driving gear, and is engaged with the plurality of second limiting wheels and the pulling driving gear at the same time, and the pulling chain of the two pulling assemblies is provided with a pulling opening for clamping the taro stem.

[0044] After the pulling assembly is connected to the taro stem, the taro stem is clamped by the two pulling chains, and the pulling chain pulls the taro stem upward, so that the taro fruit and the root are raised and are higher than the screening collecting assembly.

[0045] Further, the cutting frame is rotatably connected to the vehicle frame at one end, and the rotation axis of the cutting frame is along the Y direction.

[0046] The cutting saw is rotatably connected to the other end of the cutting frame, and the rotation axis of the cutting saw is along the A direction which is perpendicular to the Y direction; the cutting motor is installed on the cutting frame for rotating the cutting saw; and the two cutting saws are arranged one above the other.

[0047] The cutting saw cuts the raised taro root and the taro stem, so that the taro root and the taro stem fall into the screening collecting assembly.

[0048] Further, the screening collecting assembly comprises:

[0049] The lifting mechanism is fixed at the non-extendable end of the vehicle frame, and the extendable end can be vertically extended and retracted.

[0050] The collecting frame is fixed at the extendable end of the lifting mechanism; and the lower end of the collecting frame is provided with a strip-shaped hole for discharging the root.

[0051] The lifting mechanism continuously lifts and shakes the collecting frame, so that the root is discharged from the strip-shaped hole of the collecting frame, and only the taro fruit is left in the collecting frame.

[0052] Advantages:

[0053] 1. The harvester is provided with the pulling assembly and the cutting assembly; the pulling chain of the pulling assembly clamps the taro stem, and then the taro stem and the fruit are pulled and raised by the structure that the front end of the pulling chain is lower than the rear end and the rotation of the pulling chain; the cutting assembly cuts the raised taro stem and root, so that the automatic processing is realized.

[0054] 2. The soil turning assembly is provided, and the soil is loosened by the soil turning assembly before the shovel digs out the taro from the soil, so that the taro is conveniently dug out from the soil.

[0055] 3. The screening collecting assembly is provided, and the collected root is shaken out of the collecting frame, and only the taro fruit is left in the collecting frame.

[0056] 4. The support assembly is provided, which can prevent the uprooted taro stems from falling.

[0057] 5. The limit assembly is provided, which can introduce the taro stems into the pulling assembly by limiting the friction between the chains, prevent the taro stems from falling, and achieve the purpose of precise feeding into the pulling assembly. Meanwhile, it can also avoid the situation of breaking or jamming the taro stems. BRIEF DESCRIPTION OF DRAWINGS

[0058] Figure 1 is the overall structure of the harvester;

[0059] Figure 2 is the front view of the overall structure of the harvester;

[0060] Figure 3 is the top view of the overall structure of the harvester;

[0061] Figure 4 is the structure diagram of the soil shifting assembly;

[0062] Figure 5 is the structure diagram of the support assembly;

[0063] Figure 6 is the structure diagram of the limit assembly;

[0064] Figure 7 is the structure diagram of the pulling assembly;

[0065] Figure 8 is the structure diagram of the cutter assembly;

[0066] Figure 9 is the structure diagram of the screening and collecting assembly.

[0067] 1. Towing vehicle; 2. Frame; 3. Spade; 4. Soil shifting assembly; 41. Soil shifting motor; 42. Soil shifting driving gear; 43. Connecting shaft; 44. Soil shifting driven gear; 45. Soil shifting chain; 46. Brush roller; 5. Support assembly; 51. Crossbar; 52. Slide block; 53. Limiting spring; 54. Mounting seat; 55. First connecting frame; 56. Second connecting frame; 57. End; 6. Limit assembly; 61. Mounting frame; 62. First limiting wheel; 63. Limiting motor; 64. Limiting chain; 7. Pulling assembly; 71. Pulling frame; 72. Second limiting wheel; 73. Pulling motor; 74. Pulling chain; 8. Cutter assembly; 81. Cutting frame; 82. Cutting saw; 9. Screening and collecting assembly; 91. Lifting mechanism; 92. Collecting frame. DETAILED DESCRIPTION

[0068] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] A taro harvester includes a tractor unit 1, wherein the chassis of the tractor unit 1 is a rectangular disc, and the direction of movement of the tractor unit 1 is along... Figure 1 In the X direction, viewed from the top view, let the centerline of the chassis along the X direction be line G, and the plane passing through line G and vertically be surface P. Let the right end of the tractor 1 along the X direction be the front end, and the left end along the X direction be the rear end.

[0070] A frame 2 is fixed to the upper surface of the chassis. A blade 3 is mounted at the front end of the frame 2, used to dig taro fruits out of the soil. The rear end of the blade 3 is rotatably connected to the frame 2. The front end of the blade 3 is lower than the rear end, and the blade 3's axis of symmetry along the X direction lies in plane P; in other words, the blade 3 is located at the middle of the front end of the frame 2. The axis of rotation of the blade 3 is along... Figure 1 The Y-direction is horizontal and perpendicular to the X-direction. A digging assembly (not shown) for driving the blade 3 to rotate is mounted on the frame 2. The digging assembly includes a digging motor and a reducer. The non-rotating shaft end of the digging motor is fixed to the frame 2. The rotating shaft of the digging motor is connected to the input end of the reducer, and the output end of the reducer is connected to the rotating shaft of the blade 3. The digging motor can drive the blade 3 to rotate through the reducer.

[0071] See Figure 2 and Figure 4 The frame 2 is equipped with two sets of soil-loosening components 4, which are symmetrically arranged along surface P. The soil-loosening components 4 are located at the front end of the blade 3. The soil-loosening components 4 are used to loosen the soil on both sides of the blade 3, making it easier for the blade 3 to remove the taro fruits from the soil. The soil-loosening components 4 include:

[0072] The non-rotating shaft end of the soil-digging motor 41 is fixed on the frame 2, and the rotating shaft of the soil-digging motor 41 is set vertically.

[0073] The soil-removing drive gear 42 is sleeved on the rotating shaft of the soil-removing motor 41. The axis of the soil-removing drive gear 42 coincides with the axis of the rotating shaft of the soil-removing motor 41, and the soil-removing drive gear 42 is fixed on the rotating shaft of the soil-removing motor 41.

[0074] The connecting shaft 43 is rotatably connected to the frame 2, and the axis of the connecting shaft 43 is set vertically.

[0075] The soil-shifting driven gear 44 is sleeved on the connecting shaft 43, the axis of the soil-shifting driven gear 44 coincides with the axis of the connecting shaft 43, and the soil-shifting driven gear 44 is fixed on the connecting shaft 43.

[0076] The soil-shifting chain 45 is sleeved on and engaged with the soil-shifting driving gear 42 and the soil-shifting driven gear 44.

[0077] The brush roller 46 is fixed on the connecting shaft 43, and the axis of the brush roller 46 coincides with the axis of the connecting shaft 43. The brush rollers 46 of the two soil-shifting assemblies 4 are respectively located on the two sides of the shovel 3 along the Y direction. The height of the brush roller 46 is lower than the height of the front end of the shovel 3.

[0078] The soil-shifting motor 41 rotates in sequence through the soil-shifting driving gear 42, the soil-shifting chain 45, the soil-shifting driven gear 44, the connecting shaft 43 and the brush roller 46. After the brush roller 46 rotates, the soil on the two sides of the shovel 3 along the Y direction is loosened. The soil loosening opening is convenient for the shovel 3 to be moved along with the tractor 1 to shovel the taro fruits out of the soil. In the embodiment, the tractor 1 is remotely controlled by a person.

[0079] See Figure 2 The frame 2 is also provided with two sets of straw supporting devices, the two sets of straw supporting devices are located above the shovel 3, and the two sets of straw supporting devices are located in front of the shovel 3 and the soil-shifting assembly 4; for preventing the taro stems from falling after the taro fruits are dug out of the soil. The two sets of straw supporting devices are arranged one above the other, and each set of straw supporting device includes two groups of straw supporting assemblies 5.

[0080] The two groups of straw supporting assemblies 5 in each set of straw supporting device are symmetrically arranged along the plane P. See Figure 5 The straw supporting assembly 5 includes:

[0081] The horizontal rod 51 is fixedly connected to the frame 2, and the axis of the horizontal rod 51 is along the X direction.

[0082] The sliding block 52 is movably clamped on the horizontal rod 51 and can move along the axis of the horizontal rod 51.

[0083] The limiting spring 53 is sleeved on the horizontal rod 51, one end of the limiting spring 53 abuts against the frame 2, and the other end abuts against the sliding block 52. The limiting spring 53 is in a compressed state.

[0084] The mounting seat 54 is fixed on the horizontal rod 51, and the sliding block 52 is between the limiting spring 53 and the mounting seat 54; the sliding block 52 abuts against the mounting seat 54 under the action of the limiting spring 53.

[0085] The first connecting rod 55 is rotatably connected to the mounting seat 54 at one end, and the rotation shaft axis of the first connecting rod 55 is vertically arranged.

[0086] The second connecting rod 56 is rotatably connected to the sliding block 52 at one end and rotatably connected to the middle of the first connecting rod 55 at the other end. The rotation axes of the two ends of the second connecting rod 56 are both arranged vertically.

[0087] The end head 57 is fixed to the other end of the first connecting rod 55. Under the action of the limiting spring 53, the end heads 57 of the two supporting and guiding assemblies in each set of supporting and guiding assemblies abut each other.

[0088] As the tractor 1 moves forward, the taro stem will contact one or both of the two end heads 57 in each set of supporting and guiding assemblies, the taro stem abuts against the front end surface of the end head 57, and the taro stem will make the end head 57 and the first connecting rod 55 as a whole rotate in the positive direction of the angle of view (i.e., rotate to the left end), in the process, the sliding block 52 slides on the cross rod 51 and compresses the limiting spring 53. Figure 5 As the tractor 1 continues to move forward, the two end heads 57 are separated from each other, the taro stem is separated from the abutment with the end head 57 at the separation position, and finally, the taro stem reaches the rear end of the end head 57. After the end head 57 loses the abutment of the taro stem, the elastic force of the limiting spring 53 is restored, and the two end heads 57 are reset and abut against each other again. After the taro stem reaches the rear end of the end head 57, the soil around the taro fruit is loosened by the soil turning assembly, and at this time, the taro is dug out of the soil by the shovel 3. After the taro is dug out, the taro stem will abut against the rear end surface of the end head 57 during the dumping process. Because the sliding block 52 abuts against the mounting seat 54, the taro stem is limited by the sliding block 52 and the mounting seat 54 and cannot be separated from the end head 57 in the reverse direction (i.e., cannot rotate to the right end). That is, the taro stem cannot make the end head 57 separate in the reverse direction and dump.

[0089] The frame 2 is also provided with two sets of limiting stem assemblies 6, which are located at the rear end of the supporting and guiding assemblies 5 and at the upper end of the supporting and guiding assemblies 5. The limiting stem assemblies 6 are used to limit the un-dumped taro stems in the Y direction. The two sets of limiting stem assemblies 6 are symmetrically arranged along the plane P.

[0090] As shown in Figure 3 and Figure 6 , the limiting stem assembly 6 comprises:

[0091] The mounting bracket 61 is fixedly connected to the frame 2;

[0092] A plurality of first limiting wheels 62 are rotatably connected to the mounting bracket 61, and the rotation axes of the first limiting wheels 62 are arranged vertically.

[0093] The limiting motor 63 has a vertical rotation axis, and the non-rotation shaft end is fixed to the frame 2. A limiting driving gear is fixedly connected to the rotation shaft of the limiting motor 63, and the rotation axis of the limiting driving gear coincides with the rotation axis of the limiting motor 63.

[0094] The restriction chain 64 is simultaneously sleeved on and engaged with the plurality of first restriction wheels 62 and the position-limiting driving gear. The two sets of restriction chains 64 of the grass-limiting assemblies 6 are not in contact with each other, and the two restriction chains 64 leave a feeding port for the taro stems to pass through, the diameter of the feeding port being slightly smaller than the diameter of the taro stems. Figure 3 As viewed from above, the rotation directions of the two restriction chains 64 are both from the front end to the rear end.

[0095] With the advance of the tractor 1, the taro stems that have not been toppled reach the feeding port, and the left ends of the two restriction chains 64 simultaneously clamp the taro stems, and because of the rotation of the two restriction chains 64, the taro stems and the taro fruits are moved backward under the driving of the two restriction chains 64.

[0096] The frame 2 is further provided with two sets of pulling assemblies 7, which are symmetrically arranged along the surface P. The front end of the pulling assembly 7 is at the same height as the grass-limiting assembly 6, and the rear end of the pulling assembly 7 is higher than the front end of the pulling assembly 7. The pulling assembly 7 is used to receive the taro stems conveyed by the grass-limiting assembly 6 and pull the taro upward through the taro stems.

[0097] The pulling assembly 7 comprises:

[0098] A pulling frame 71 is fixedly connected to the frame 2, and the front end of the pulling frame 71 is lower than the rear end.

[0099] A plurality of second restriction wheels 72 are rotationally connected to the pulling frame 71, and the axis of the second restriction wheel 72 is perpendicular to the pulling frame 71.

[0100] A pulling motor 73 is fixedly connected to the frame 2 at a non-rotating shaft end, and the rotating shaft of the pulling motor 73 is perpendicular to the pulling frame 71. A pulling driving gear is fixedly connected to the rotating shaft of the pulling motor 73, and the axis of the pulling driving gear coincides with the axis of the rotating shaft of the pulling motor 73.

[0101] A pulling chain 74 is simultaneously sleeved on and engaged with the plurality of second restriction wheels 72 and the pulling driving gear. The pulling chain 74 of the two pulling assemblies 7 leaves a lifting port with a gap slightly smaller than the diameter of the taro stems. Figure 3 As viewed from above, the rotation directions of the two pulling chains 74 are both from the front end to the rear end, i.e., the opposite sides of the two pulling chains 74 are both moved from the front end to the rear end.

[0102] As viewed from above, the rotation directions of the two pulling chains 74 are both from the front end to the rear end, i.e., the opposite sides of the two pulling chains 74 are both moved from the front end to the rear end. Figure 3The taro stem of the taro transported by the weed limiting component 6 is located between the pulling openings of the two pulling chains 74 of the pulling component 7, and the taro stem is clamped by the two pulling chains 74. Since the pulling chains 74 are continuously rotating, the two pulling chains 74 will move forward with the taro stem clamped thereon, and the taro stem is continuously lifted during the movement of the pulling chains 74 due to the fact that the front end of the pulling chain 74 is lower than the rear end, so that the taro is pulled upward by the pulling chain 74. The fruit and root of the taro are ensured to be lifted.

[0103] See Figure 8 The two cutter components 8 are further included and are located below the pulling component 7, and are respectively used to cut the taro stem and the root of the taro at the same time.

[0104] The cutter component 8 includes:

[0105] The cutting frame 81 is rotatably connected to the frame 2 at one end, and the rotation axis of the cutting frame 81 is along the Y direction.

[0106] The cutting saw 82 is rotatably connected to the other end of the cutting frame 81, and the rotation axis of the cutting saw 82 is perpendicular to the Y direction. The cutting motor (not shown) for rotating the cutting saw 82 is installed on the cutting frame 81.

[0107] After the cutting frame 81 is rotated to a certain angle, the position of the cutting frame 81 is locked by a bolt. The height of the cutting saw 82 on the two cutting frames 81 is respectively equal to the height of the taro stem and the root of the taro clamped by the two pulling chains 74, and the taro moves through the two cutting saws 82 during the driving of the two pulling chains 74, and the two cutting saws 82 cut the root of the taro and the taro stem at the same time. After being cut, the taro stem is still clamped by the two pulling chains 74 and will not fall off, and with the continuous rotation of the two pulling chains 74, finally, the taro stem is discarded at the rear end of the two pulling chains 74.

[0108] See Figure 9 The sieve collecting component 9 is further included and is located directly below the two cutter components 8, and is used to receive the taro fruit and root cut by the cutter component 8. The sieve collecting component 9 includes:

[0109] The lifting mechanism 91 is a pneumatic cylinder in this embodiment, and the non- telescopic end of the lifting mechanism 91 is fixed to the frame 2, and the telescopic end of the lifting mechanism 91 can be telescoped in the vertical direction.

[0110] The collecting frame 92 is fixed to the telescopic end of the lifting mechanism 91 and is controlled to be lifted by the lifting mechanism 91. The collecting frame 92 is located directly below the cutter component 8 and can receive the taro fruit and root cut by the cutter component 8.

[0111] The collecting frame 92 is provided with a strip-shaped hole at the lower end for discharging the root hairs. The lifting mechanism 91 continuously lifts and lowers the collecting frame 92. The taros and root hairs falling into the collecting frame 92 are shaken due to the continuous lifting and lowering of the collecting frame 92. Finally, the root hairs are discharged from the collecting frame 92 through the strip-shaped hole, and only the taro fruits are left in the collecting frame 92.

[0112] The above is the ideal embodiment of the present application. Based on the above description, the relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A taro harvesting machine comprising a tractor and a frame mounted on the chassis of the tractor, characterised in that, The moving direction of the tractor is along the X direction, the positive direction of the X direction is the front end, and the negative direction of the X direction is the rear end; The front end of the frame is provided with a shovel for digging taros from the soil; The frame is further provided with two groups of soil turning components for loosening the soil, which are located in front of the shovel; The frame is further provided with two groups of supporting devices for preventing the taro stems from falling, which are located above the shovel; The frame is further provided with two groups of limiting components for limiting the position of the taro stems, which are located at the rear end of the supporting devices; The frame is further provided with two groups of pulling components for pulling the taros, which are located at the rear end of the limiting components; The frame is further provided with two groups of cutting components for cutting the taro stems and roots, which are located below the pulling components; The frame is further provided with a screening and collecting component for separating the taro stems and roots, which is located below the cutting components; the two groups of supporting devices are arranged one above the other, and each group of supporting devices comprises two groups of supporting components which are symmetrically arranged along the plane P; The supporting component comprises: A horizontal rod is fixed on the frame, and the axis of the horizontal rod is along the X direction; A sliding block is movably clamped on the horizontal rod and can move along the axis of the horizontal rod; A limiting spring is sleeved on the horizontal rod, one end of the limiting spring abuts against the sliding block, and the other end of the limiting spring abuts against the frame, and the limiting spring is in a compressed state; A mounting seat is fixed on the horizontal rod, the sliding block is located between the limiting spring and the mounting seat, and the sliding block abuts against the mounting seat under the action of the limiting spring; A first connecting rod is rotatably connected to the mounting seat at one end, and the rotation axis of the first connecting rod is vertically arranged; A second connecting rod is rotatably connected to the sliding block at one end and rotatably connected to the middle part of the first connecting rod at the other end, and the rotation axes of the two ends of the second connecting rod are both vertically arranged; An end is fixed to the other end of the first connecting rod; under the action of the limiting spring, the ends of the two supporting components in each set of supporting devices abut against each other.

2. A machine for harvesting taro as claimed in claim 1, wherein The middle line of the tractor chassis along the X direction is line G, and the vertical plane passing through line G is plane P; the two groups of soil turning components are symmetrically arranged along the plane P; The soil turning component comprises: A soil turning motor is fixed to the frame at the non-rotation shaft end, and the rotation shaft of the soil turning motor is vertically arranged; A soil turning driving gear is fixedly connected to the rotation shaft of the soil turning motor, and the axis of the soil turning driving gear coincides with the axis of the rotation shaft of the soil turning motor; A connecting shaft is rotatably connected to the frame, and the axis of the connecting shaft is vertically arranged; A soil turning driven gear is fixed to the connecting shaft, and the axis of the soil turning driven gear coincides with the axis of the connecting shaft; A soil turning chain is sleeved on the soil turning driving gear and the soil turning driven gear, and simultaneously meshes with the soil turning driving gear and the soil turning driven gear; A brush roller is fixed to the connecting shaft, and the axis of the brush roller coincides with the axis of the connecting shaft; the two soil turning components are located on both sides of the brush roller along the Y direction, and the height of the brush roller is lower than the height of the front end of the shovel, and the Y direction is along the horizontal direction and perpendicular to the X direction.

3. A machine for harvesting taro as claimed in claim 1, wherein The two groups of limiting components are symmetrically arranged along the plane P; the limiting component comprises: A mounting frame is fixed to the frame; A plurality of first limiting wheels are rotatably connected to the mounting frame, and the rotation axes of the first limiting wheels are vertically arranged; A limiting motor is fixed to the frame at the non-rotation shaft end, and the rotation shaft of the limiting motor is vertically arranged, a limiting driving gear is fixedly connected to the rotation shaft of the limiting motor, and the rotation shaft of the limiting driving gear coincides with the axis of the rotation shaft of the limiting motor; The two groups of limiting chains are simultaneously sleeved on and engaged with the plurality of first limiting wheels and the limiting driving gear, and the limiting chains of the two groups of limiting assemblies are not in contact and have a feeding opening for the passage of the taro stems.

4. A taro harvesting machine as claimed in claim 3, wherein, The two groups of pulling assemblies are symmetrically arranged along the plane P, and the pulling assembly comprises: The pulling frame is fixed on the vehicle frame, and the front end of the pulling frame is lower than the rear end. The plurality of second limiting wheels are rotationally connected to the pulling frame, and the rotation axis of the second limiting wheel is perpendicular to the pulling frame. The pulling motor is fixed on the vehicle frame at a non-rotation axis end, and the rotation axis of the pulling motor is perpendicular to the pulling frame. The pulling motor is fixed on the vehicle frame at a non-rotation axis end, and the rotation axis of the pulling motor is perpendicular to the pulling frame.

5. A taro harvesting machine as claimed in claim 4, wherein, The pulling motor is fixed on the vehicle frame at a non-rotation axis end, and the rotation axis of the pulling motor is perpendicular to the pulling frame. The pulling motor is fixed on the vehicle frame at a non-rotation axis end, and the rotation axis of the pulling motor is perpendicular to the pulling frame. The cutting assembly comprises:

6. A taro harvesting machine as claimed in claim 4, wherein, The cutting frame is rotationally connected to the vehicle frame at one end, and the rotation axis of the cutting frame is along the Y direction. The cutting saw is rotationally connected to the other end of the cutting frame, and the plane A where the rotation axis of the cutting saw is located is perpendicular to the Y direction. The cutting motor is installed on the cutting frame for the rotation of the cutting saw. The two cutting saws are arranged one above the other. The screening and collecting assembly comprises: The lifting mechanism is fixed on the vehicle frame at a non-extendable end and can be extended along the vertical direction at an extendable end. The collecting frame is fixed on the extendable end of the lifting mechanism, and a strip-shaped hole for removing the roots is formed at the lower end of the collecting frame.

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